Yechezkel 9:2-4

Orthodox Jewish Bible

² And, hinei, shishah anashim (six men) came from the derech of the Sha’ar HaElyon, which lieth toward the north, and every ish a keli mapatz (slaughter weapon) of his in his yad; and one ish among them was clothed with linen, with a keset hasofer (writing case) at his side; and they went in, and stood beside the Mizbe’ach HaNechoshet.

³ And the Kavod Elohei Yisroel was gone up from the Keruv (Cherub), whereupon it was, to the miftan HaBeis [HaMikdash] (the Threshold of the Beis HaMikdash). And He called to the ish clothed with linen, which had the keset hasofer at his side;

⁴ And Hashem said unto him, Go through the midst of the Ir, through the midst of Yerushalayim, and put a TAV upon the mitzekhot (foreheads) of the anashim that grieve and lament for kol hato’evot that are being done in the midst thereof.